package com.bonc.jedisCluster.utils;

import java.io.Serializable;

/**
 * RedisDataTypeDescription defines data type and additional key if needed for lookup / store tuples.
 */
public class RedisDataTypeDescription implements Serializable {
    public enum RedisDataType { STRING, HASH, LIST, SET, SORTED_SET, HYPER_LOG_LOG, GEO }

    private RedisDataType dataType;
    private String additionalKey;

    /**
     * Constructor
     * @param dataType data type
     */
    public RedisDataTypeDescription(RedisDataType dataType) {
        this(dataType, null);
    }

    /**
     * Constructor
     * @param dataType data type
     * @param additionalKey additional key for hash and sorted set
     */
    public RedisDataTypeDescription(RedisDataType dataType, String additionalKey) {
        this.dataType = dataType;
        this.additionalKey = additionalKey;

        if (dataType == RedisDataType.HASH ||
                dataType == RedisDataType.SORTED_SET || dataType == RedisDataType.GEO) {
            if (additionalKey == null) {
                throw new IllegalArgumentException("Hash, Sorted Set and GEO should have additional key");
            }
        }
    }

    /**
     * Returns defined data type.
     * @return data type
     */
    public RedisDataType getDataType() {
        return dataType;
    }

    /**
     * Returns defined additional key.
     * @return additional key
     */
    public String getAdditionalKey() {
        return additionalKey;
    }
}
